Charles e



C- E. POPE.

PAPER MAKING MACHINE.

APPLICATION FILED we. I917.

LBQQE QQU Patented May 27, 1919 IN VEN TOR.

WITNESSES:

ma'rnn s'rnrns PATENT orat on.

CHARLES E.

POPE, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO GREAT NORTHERN PAPER COMPANY, OF MILLINOCKET, MAINE, A CORPORATION.

PAPER-MAKING MACHINE.

Specification of letters Patent.

Patented May -27, 51 919.

To all whom, 1'1- may concern:

Be it known that I, CHARLES E. Porn, a citizen of the United'States'bf America, residing at Springfield, in the county of Hampden and State of'Massachusetts, have invented certain new and useful Improvements in Paper-Making Machines, of which the following is a specification:

This invention relates to paper machines and more particularly to improvements therein which are adapted for use at the start or after any break in the process of making the paper to facilitate the handling of the web and its transfer from part to part in the machine. i

In the initial starting of a web through i the machine, or in the starting of a web after any break in the process of making the paper, the web may not be carried atonce through the entire machine, but on the contrary may be carried through the machine by stages, as for example, from the wire to the first set of press rolls, from-one set of press rolls to another, from. the last press rolls to the driers, and so on. Such practice may result, for example, from a subdivision of the machine into numerous sections, each in charge of an operator. Thus one operator may form the ribbon on the wire and seerthat it is carried to a definite point and another operator will subsequently take the web from the first operator and see that it is carried to another point and so on. Due to the fact that all the sections of the machine may not simultaneously be in readiness to receive the web, it is desirable to permit the web to be'started in one sec-.

tion and travel continuously to a given point at which the web ma be allowed to travel out of its normal path and-accumulate in a mass until the next section is in readiness to receive the web. This invention is concerned with means whereby a webv which has been traveling out ofits normal path, as

by clinging to a roll, for example, maybe severed from the accumulated mass and thrown into its normal path.

The invention has for its object 'to provide in a paper machine in combination with a roll to which the web may cling and travel therewith out of its normal path, a means to sever the web from the misdirected portion and strip it from the roll and cause it to travel along its normal path.

Other objects and advantages of theinvention will appear in the following description and in the appended claims.

The invention, in an embodiment at present preferred, is shown for illustrative purposes in the accompanying drawings, in which Figure 1 is a diagrammatical view of that part of a paper machine between the last press rolls and the first drying cylinders and shows the invention-as applied to the press rolls;

Fig. 2 is a fragmentary side elevational view illustrative of the" mounting of the press roll and the improvement associated therewith;

Fig. 3 is a partial cross sectional view of Fig. 2; and

Fig. 4 is a fragmentary perspective view of the improved device shown as removed from the press roll. Referring to these drawings, a felt 5 carries the web 6 (at first a ribbon) to the last set of press rolls 7 and extends beyond the latter to a guide roll 8, returning over other guide rolls, as indicated in Fig. 1. In line with roll 8 and between it and'the first drying cylinder 9 is a guide roll 10, and the fast traveling web is arranged to ump "the distance between rolls 8 and 10 and is carried downwardly from the latter into the bight of the first drying cylinder 9 and its associated apron llby suitable means (not shown) such, for example, as those disclosed in my prior Patent No. 1,183,113, granted May 16, 1916.

in connection with a paper machine of the type mentioned, the invention is capable of use with other types of machines and is independent of the particular machine, the one illustrated and described being chosen merely as an illustrative example of one type with which the invention may be advantageously employed. The invention is also to be disclosed as associated with the press rolls of a paper making machine merely to illustrate one of its specific uses. The invention is, however, capableof other ap plications than that to be described and may be used to advantage in other parts of a paper machine than that selected for the pur oses of illustration. y

e upper press roll 7 is generally bare j Although the invention will be disclosed the roll near the top thereof. The-doctor is curved, as shown in Fig. 1, and the ribbon is stripped from the roll by the doctor and allowed to collect in the doctor and on top of roll-7 from which it may be removed 15, from time to time until all is in readiness for the transfer of the ribbon and web to the driers. The curved portion of the doctor prevents the accumulated massof pulp from falling upon the felt 5 or the ribbon thereon.

Slidably mounted, as shown in Fig. 3, is a blade 16 which ismanually movable in. a direction parallel with the axis of roll 7 by a handle 17 This blade, during the operation above described, is positioned, as shown in Fig. 3, to permit the free passage of the ribbon. Blade .16 has two sharpened edges 18 and 19, arranged substantially at right angles to one another, as clearlyshown in Fig. 4, and the former may be manually held against roll 7 by turning handle 17 in the appropriate direction. The blade may obviously be automatically'held against roll 7, ifdeslred, but the described construction is referred. y I

soon as everything is in readiness for the ribbon to be transferred to the driers, the o erator stationed at the press rolls'moves b ade '16 inwardly and turns it so that edge 18 bears on the periphery of the roll. As

'40b ade 16 is thus moved, the edge 19, co-

operating with edge' '18 severs the ribbon on the roll, the severing o the ribbon being facilitated by a sliding cutting action, as distinguished from a shearing action. The

Web having been severed as described, the blade 16 is held in its inward position and against 'roll 7 until the ribbon has been strip and blade 16. The blade may then be retracted to the position shown in Fig. 3. The ribbon is then transferred to the driers .as

disclosed in my above-mentioned patent or in any other suitable manner.

The axlal movement of blade 16, as illustrated, 1s substantially co-extensive in length with the width of the ribbon customarily formed at the start or after any break in the process of making the paper. It is obvious, i

so however, that this movement of blade 16 .may be made cosextensive in length with any Width of ribbon or web on the press roll, or other roll to which it may be applied, to act ped therefrom andthrown down upon the felt 5 by the doctor action of the edge 18- .rolls and below a'horizontal plane passing through the axisof the upper press roll, a combined journal and operating rod for said blade, and a bearing supporting said com-8 I bin'ed member to permit the scraper blade to be moved into contact with or out of engage" ment with the upper press roll, whereby said blade ma be engaged with the latter to stria lea strip of the wet paper web from t e upper press rolland deflect it so that it will .move gravity and its own momentum onto and along with the-felt.

2. The combination in a paper machine with the upper and lower press rolls thereof, of a scraper; of less length than the rolls" arranged to be moved into contact with the surface of the upper press roll at apointbeyond the pinch of said rolls and below a horizontal plane passing through the axis of the upper press 'roll, a combined j ournal and operatlng rod for said scraper, a, bearing supporting said combined member for axial or rotative movement therein, whereby sa1d scraper may be moved axially or in a rotary manner into contact with or out of engagement withv the upper press roll and when incontact therewith may strip a lead strip of the wet paper web from. the upper ress roll and deflect it so that it will move y gravity and its own momentum onto and along with the felt, and cutting edges for said scraper, substantially as described.

3. In a paper machine, an upper press roll to which the web .will cling unless positively 1 0 stripped therefrom, and a. cutting and strippmg plate of less length than the rollmovably mounted adjacent the upper press roll an dlreoted axially along the surface of the upper press roll at such point as to strlp the lead strip of the paper Web therefrom, sa1d late arra to be moved into contact wit said roll to out said lead strip I and arranged to be held against the roll to act as a scraper for the entire width of the 12.0 lead strip to remove'it from said roll and guide it in the desired direction away from said roll and in the path of travel of the .web.

CHARLES E. POPE. 

